Senior Software Engineer | The Synthesizer

As a Senior Software Engineer, you will lead the design and development of modern, full-stack applications that directly support mission-critical objectives. You will operate across the entire software lifecycle, from shaping requirements with stakeholders to delivering scalable, secure, and user-focused solutions. This role requires more than just coding. You will be expected to take ownership of complex problems, make sound architectural decisions, and drive execution in a fast-moving environment where clarity is often lacking. You will play a key role in elevating engineering standards, improving delivery pipelines, and mentoring other developers while building software that delivers real operational impact.

• Lead the design, development, and deployment of scalable full-stack applications using modern web technologies
• Own features end-to-end across frontend, backend, APIs, and data layers
• Architect and implement responsive, high-quality user interfaces with strong attention to usability and user experience
• Develop secure, performant backend services and APIs that support mission needs
• Collaborate directly with customers and stakeholders to translate ambiguous requirements into working solutions
• Establish and enforce best practices in code quality, testing, security, and performance
• Build and maintain containerized applications using Docker and Kubernetes
• Contribute to and improve CI/CD pipelines to enable fast, reliable software delivery
• Mentor junior developers and contribute to raising the overall technical bar of the team
• Identify technical risks, gaps, and inefficiencies, and take initiative to resolve them

• 10+ years of professional experience in software development, with a strong focus on full-stack application development

• Proven experience building and delivering production-grade web applications using modern frameworks such as React, Next.js, Angular, or Vue

• Strong proficiency in JavaScript and TypeScript across both frontend and backend environments

• Experience designing, building, and maintaining RESTful APIs and backend services

• Hands-on experience with containerization technologies such as Docker and familiarity with orchestration platforms like Kubernetes

• Solid understanding of web application security principles, including authentication, authorization, and secure coding practices

• Experience working in agile development environments with the ability to adapt to evolving and ambiguous requirements

• Demonstrated ability to independently solve complex technical problems and drive solutions from concept to deployment

• Strong communication skills with the ability to work directly with customers, stakeholders, and cross-functional teams

• Experience contributing to or leading code reviews, enforcing engineering standards, and improving team-level development practices

• Experience with modern backend frameworks such as Node.js, Express, or NestJS

• Experience deploying and operating applications in cloud environments (AWS, Azure, or GCP)

• Familiarity with database design, optimization, and management (PostgreSQL or similar)

• Experience building and maintaining CI/CD pipelines for automated testing and deployment

• Exposure to DevSecOps practices and integrating security into the development lifecycle

• Experience designing or contributing to scalable system architectures

• Familiarity with monitoring, logging, and observability tools

• Experience working in government or defense environments

• Bachelor's degree in Computer Science, Software Engineering, or a related STEM field, or equivalent practical experience

• US Citizenship is required for consideration, as this job requires U.S. government security clearance

• Required - Active Secret clearance
• Nice to Have - Active Top Secret/SCI clearance

• Must be able to remain in a stationary position and work on a computer for prolonged periods.

As a nationally recognized Great Place to Work® and Military Times® Best for Vets: 2025 Employer, we prioritize employee well-being and experience, fostering a culture that values dedicated teams and committed individuals. Our premier total compensation package for eligible employees includes:

• Comprehensive health benefits encompassing medical, dental, and vision coverage.
• Company-paid disability and life insurance
• Generous 401(k) plan with guaranteed company contribution
• Paid time-off options including floating holidays, personal time, parental leave, and community service opportunities.
• Investment in employee growth and development through tuition reimbursement and discounted tuition programs with select colleges.

Infinity Labs is an equal opportunity employer, including disability/vets.

Infinity Labs is an innovation-focused company with expertise in modeling, simulation, and analysis (MS&A), research and development (R&D), cyber operational technology, and training. Our project portfolio is exceptionally broad and encompasses a wide spectrum of physical scale and applications (e.g., materials, components, subsystems, platforms, and system of systems). We integrate science and systems as part of our overall solutioning approach, and we investigate advanced concepts and technologies with disruptive application potential. The sophistication of our work directly reflects the ingenuity and proficiency of our team. Our workforce shapes the future, and our employees are our greatest asset.